Do I need spacers? 2 camber bolts with stock wheels and suspension
 

I installed whiteline camber bolt on top and SPC camber bolt on bottom on my 2023 BRZ. I can but hardly fit finger in gap between spring and tires on front. Is that enough or I need to get extended bolts and spacers?

Finger width would be fine IMO.

Super fine.

How much camber is that ?

I'd make sure you have 10mm (TUV requirement, so safe starting point).

fingers are too variable for measurement.

I have the following:

20mm front spacer
25mm rear spacer
Camber bolts
Super pro rear arm and toe links
KW V3 - finger space between top of tyre and front wing... All super duper good!!

Should be about 2.5-2.7°. I am doing alignment next week.

Would check again. What's TUV?

I assume you meant distance on outside of the wheel? If so, my question was about inside.

I checked again, it's very tight, my finger tip fits when pushed, I would say it's about 5mm.

Unsure what the distance was when I had the spacers installed while I still had the original dampers but with Eibach sportline springs. I just wanted the wheels pushed out.. oh I had the alignment done at the time.

I ended up ordering 3mm spacer last night, if alignment guy thinks I need it, I would put those on.

Will you need extended studs as well ?

3mm technically clears but doesn't leave much stud left for nut to grab onto. Not sure I'd feel comfortable running that on track but that's me.

Some 2.5" Arps would solve that.